434433421 has 8 divisors (see below), whose sum is σ = 447018264. Its totient is φ = 422011200.

The previous prime is 434433413. The next prime is 434433431. The reversal of 434433421 is 124334434.

It can be written as a sum of positive squares in 4 ways, for example, as 190136521 + 244296900 = 13789^2 + 15630^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434433421 - 2³ = 434433413 is a prime.

It is a super-5 number, since 5×434433421⁵ (a number of 44 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434433421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434433431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35226 + ... + 45931.

It is an arithmetic number, because the mean of its divisors is an integer number (55877283).

Almost surely, 2^434433421 is an apocalyptic number.

It is an amenable number.

434433421 is a deficient number, since it is larger than the sum of its proper divisors (12584843).

434433421 is a wasteful number, since it uses less digits than its factorization.

434433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81311.

The product of its digits is 13824, while the sum is 28.

The square root of 434433421 is about 20843.0664970392. The cubic root of 434433421 is about 757.3693797512.

Adding to 434433421 its reverse (124334434), we get a palindrome (558767855).

It can be divided in two parts, 43443 and 3421, that added together give a palindrome (46864).

The spelling of 434433421 in words is "four hundred thirty-four million, four hundred thirty-three thousand, four hundred twenty-one".